Stepping up to the plate:

Brooklyn_Museum_-_Desdemona_Cursed_by_her_Father_(Desdemona_maudite_par_son_père)_-_Eugène_Delacroix

https://www.google.com/search?q=desdemona

This passage on act 1, scene 3, lines 208-218 represents the first time in the play where Desdemona gathered enough courage to stand in front of the assembled senate to speak her voice. During this speech, Desdemona boldly stated that she has loyalty to Othello, but she specifically made sure that it was not at the expense of respect of her own father. Desdemona acknowledged what her father had done for her and therefore she stated “To you I am bound for life and education. My life and education both do learn me how to respect you. You are the lord of my duty…”(Act 1, sc 3, 212-213). She recognized that her duty is shared among respecting her father and being a loyal wife for Othello. This display of courage and strength, however, helped to establish Othello’s truthfulness behind his own speech earlier on.  This passage is essential because this sense of courage and bravery displayed by Desdemona is shown again when she offered to help Cassio get his position back from Othello. Desdemona is only fueled with good intentions, as she was when she was in front of the assembled senate, but it was already too late for Othello to believe her this time. His mind was already corrupted and poisoned by Lago’s manipulation, therefore he became blind towards Desdemona’s honesty.